Abstract
The distribution of Erhai Lake sediment pore water DON followed the pattern of middle (1.449 mg/L) > south (0.828 mg/L) > north (0.266 mg/L), with the highest concentrations being found in the least polluted areas. The sediment pore water DON mainly contained hydrophilic substances and substances derived from microbial sources. Most of these were integrated into humic acid-like substances (∼78%), which benefited for reducing sediment DON releasing risk. There were more chains in Erhai Lake sediment pore water DON, with a small number of aromatic substituents. The characteristics of DON components were suggested to be related to human activities.
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Schedule a callMore From: Journal of Environmental Accounting and Management
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